| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|
| 4181 | Buchholz in der Nordheide | Lower Saxony | 37,404 | Germany | Europe/Berlin |
| 4183 | Jesteburg | Lower Saxony | 7,066 | Germany | Europe/Berlin |
| 4187 | Buchholz in der Nordheide | Lower Saxony | 37,404 | Germany | Europe/Berlin |